Made small typo corrections

(1) the help option for etcdctl is -h and not --h. Corrected the same
(2) in the snapshot command, the --endpoints option's value has been corrected to reflect the right endpoint.

Author: ganeshniyer

content/en/docs/tasks/administer-cluster/configure-upgrade-etcd.md

@@ -283,14 +283,14 @@ volume.
 We can also take the snapshot using various options given by etcdctl. For example 
 
 ```shell
-ETCDCTL_API=3 etcdctl --h 
+ETCDCTL_API=3 etcdctl -h 
 ``` 
 
 will list various options available from etcdctl. For example, you can take a snapshot by specifying
 the endpoint, certificates etc as shown below:
 
 ```shell
-ETCDCTL_API=3 etcdctl --endpoints=[127.0.0.1:2379] \
+ETCDCTL_API=3 etcdctl --endpoints=https://[127.0.0.1]:2379 \
   --cacert=<trusted-ca-file> --cert=<cert-file> --key=<key-file> \
   snapshot save <backup-file-location>
 ```